TMS320F28379D: How to test the amplitude-frequency and phase-frequency characteristics of current loops in experiments

Hi Bob,

Current solution doesn't support measuring these parameter directly and tuning it using Matlab, but you can use Ti's SFRA (Software Frequency Response Analyzer) tool to measure and tune these loops. Please refer the following documents user guide and example demonstrating how to use SFRA in motor. You may have to modify your software/firmware to adopt the same.

User guide for SFRA  https://www.tij.co.jp/lit/ug/spruik4a/spruik4a.pdf?ts=1705418302441&ref_url=https%253A%252F%252Fwww.google.com%252F

Example for motor control parameter tuning using SFRA -

1. https://www.ti.com/lit/an/spraco3/spraco3.pdf?ts=1705418300651&ref_url=https%253A%252F%252Fwww.google.com%252F

2. https://www.ti.com/lit/ug/tiduew0/tiduew0.pdf?ts=1705418822883&ref_url=https%253A%252F%252Fwww.google.com%252F

Regards,

Sumit